Lathe NetHook

[Jure Klemencic from Camincam]

Hi, I am here again with my "Lathe" questions. I know Nethook API is not intended to manage Lathe operations, but I got quite far with the old nethook.dll and I am trying to reprogram my NetHook for the new NETHook2_0.dll.

 

Using nethook.dll I managed to import a lathe operation from an existing file:

code:

---

public static int MakeOperationFromName(string operationsFile, string opName, string geomLevel, int SS, bool reverseChain)

{

//Remember geometry level state and turn it on

bool geomLevelVis = Levels.IsLevelVisible(geomLevel);

Levels.SetLevelVisibleByName(geomLevel, true);

//Chain all on this level

ArrayList chainRefs = new ArrayList();

if (!Mastercam.Chain.ChainAll(false, false, false, geomLevel, true, chainRefs))

{

//Reset geometry level state to remembered value

Levels.SetLevelVisibleByName(geomLevel, geomLevelVis);

return 0;

}

else

{

COperationRef opRef;

opRef = COperationRef.ImportFromFile(operationsFile, opName);

//Does operation exist in the operations file?

if (opRef == null)

throw new Exception("RouteLevel::COperationRef.ImportFromFile(" + operationsFile + ", " + opName.ToString() + ") not found!!!");

//Predefine spindle speed for it to work.

opRef.spindleSpeed = 0;

opRef.spindleSpeed = SS;

opRef.isSelected = true;

 

if (Chain.ChainManager(opRef, chainRefs, 1, 0))

{

if (!Toolpath.RegenOp(opRef))

throw new Exception("Call to RouteLevel::RegenOp() on level " + geomLevel + " failed!!!");

}

else throw new Exception("Call to RouteLevel::Chain.ChainManager() on level " + geomLevel + " failed!!!");

 

if (chainRefs.Count > 0)

{

if (!Mastercam.Chain.FreeChains(chainRefs)) throw new Exception("Call to RouteLevel::FreeChains() on level " + geomLevel + " failed!!!");

}

//Reset geometry level state to remembered value

Levels.SetLevelVisibleByName(geomLevel, geomLevelVis);

return opRef.operationID;

}

}

---

, but using the new NETHook2_0.dll I can't do that:

code:

---

Operation opImp = OperationsManager.ImportOperation("C:JureOPS.MCX", "MyOperation");

ChainBasedOperation opChBas = (ChainBasedOperation)opImp;

opChBas.Chains = ChainManager.ChainAll(false, false, 1);

opChBas.Commit();

opChBas.Regenerate();

---

This code works if MyOperation is a Mill operation and does not work if MyOperation is a Lathe operation. In the latter case I get this message:

Unhandled Exception: System.NullReferenceException - Object reference not set to an instance of an object

 

If there is really no way to work with Lathe operations using NETHook2_0.dll, could I somehow write only this segment of code in the old nethook.dll. If not, then I know it is possible to combine NetHook with C++.

 

Please, help! And thank you very much.